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The moir\'e superstructure of graphene grown on metals can drive the assemblyof molecular architectures, as iron-phthalocyanine (FePc) molecules, allowingfor the production of artificial molecular configurations. A detailed analysisof the Gr/Co interaction upon intercalation (including a modelling of theresulting moir\'e pattern) is performed here by density functional theory,which provides an accurate description of the template as a function of thecorrugation parameters. The theoretical results are a preliminary step todescribe the interaction process of the FePc molecules adsorption on the Gr/Cosystem. Core level photoemission and absorption spectroscopies have beenemployed to control the preferential adsorption regions of the FePc on thegraphene moir\'e superstructure and the interaction of the central Fe ion withthe underlying Co. Our results show that upon molecular adsorption the distanceof C atoms from the Co template mainly drives the strength of themolecules-substrate interaction, thereby allowing for locally differentelectronic properties within the corrugated interface.

FePc Adsorption on the Moir\'e Superstructure of Graphene Intercalated with a Co Layer